Bumper for log-wagons.



BUMPER FOR L0 GONS. v APPLICATION FILED MAR. a7, 1913.

3 I I l snf i i o I Patented Nov. 25, 1913.

WITNESSES 33 I INVENTOR fi I. By W W ATTORNEYS W. F. JONES.

BUMPER FOR LOG WAGONS.

APPLICATION 2mm MAR. 21, 1913.

1,079,859. 1 I Patented Nov. 25, 1913. I

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- M'VENTOR lfil/l'am K Jones ATTORNEYS COLUMBIA PLANOGRAPl-I C0, WASHINGTON, D. C:

WITNESSES WILLIAM F. JONES, 0F DIALVILLE, TEXAS.

BUMPER ron LOG-WAGONS.

Specification of Letters Patent.

Patented Nov. 25, 1913.

Application filed March 27, 1913. Serial No. 757,101.

To all whom it may concern:

Be it known that I, WILLIAM F. Jones,

a citizen of the United States, and a resident of Dialville, in the county of Cherokee and State of Texas, have invented a new and Improved Bumper for Log Wagons, of which the following is a full, clear, and exact description.

My invention relates to bumpers in use on log wagons, and has reference more particularly to a device mounted to roll on a wagon bolster and adapted to collapse below the carrying surface of the bolster.

An object of the invention is to provide an inexpensive simple, solid and easily opi erated bumper which will prevent transverse and longitudinal displacement of a load of logs when in operative position.

wagon.

The invention consists of the construction and combination of parts to be more fully described hereinafter and fully set forth in the claims.

Reference is to be had to the accompanying drawings forming a part of this specifia similar view with the bumper collapsed, having one side of same broken away to show the detail of construction; Fig. 3 is a' plan view of Fig. 1; Fig. 4 is a sectional view on line 44, Fig. 1; and Fig. 5 is a plan view of the key.

In the appended drawings, 6 represents a bolster on the end of which is mounted a bumper 7 formed of two side plates 8, trapezoidal in shape, with the parallel sides normal to the upper horizontal surface of the bolster and the longer side away from the end of the bolster; the side plates 8 having their edges normal to the parallel sides overhanging the upper surface of the bolster. The two plates are maintained apart by means of tubular portions 9 which register with openings in the plates 8. Engaging these openings and the tubular portions 9 are bolts 10, which bind the two plates rigidly together.

The middle bolt adjacent the longest parallel side of the plates 8 carries a sharplypointed member 11 pivotally mounted on same and having the sharp point projecting from the said side, so as to engage a log adac ent the bumper. The opposite end of said pointed member 11 is provided with a hookedportion adapted to engage a loop 12 mounted, on another bolt 10. member 11 is prevented from side motion on the bolt 10 by providing on the side of same shortened tubular portions 13. Each of the said plates 8 is also provided with a plurality of cups 14 formed on the exterior surface and all in alinement in a plane parallel to the upper surface of the bolster. The cups 14 are provided with grooves 15 having a threaded aperture engaged by a screw 16. Engaging in the cups 14 is a roller 17, the ends of which are provided A further object is to provide a bumper which will collapse when desired and thereby aid to quickly discharge a load from a with grooves 18 registering with the grooves 15 in the cups 14 of the opposite plates. Located in the grooves15 and in engage- I ment with the grooves 18 is a series of balls 19 forming a bearing for the roller 17. The balls 19 are placed in position in the groove 15 through the threaded opening in the cup by removing the screw 16. The rollers 17 when bearing in cups 14 rest on the upper surface of the bolster, and, consequently, form a support for the plates 8. It can be easily seen that when the bumper is caused to move on the bolster-the rollers 17 Will afford an easy displacement for same, as rolling friction is less than sliding friction.

Intermediate the side of the bolster and the inner face of the plate 8, a longitudinal plate 20 is provided, which is pivotally connected to the lower corner of the longest parallel side of the plate 8. The plate 20 is provided with a longitudinal slot 21, extending substantially through the entire length of the plate, and a series of notches 22, substantially normal to the groove 21 and communicating therewith. The bolster 6 is provided with an elongated side opening into which a key 23 fits. The key 23 is provided with cam surfaces 24 registering with the slot 21 of the plates 20. The opening in the bolster, as above stated, is elongated, so that the key 23 can be extracted or placed in position when end portion 25 is in alinement with the elongation of the opening. Therefore, normally, the sides of the cam 24 are bearing against the sides of the bolster 6. Apertures 26 are provided in the key 23 into which pins 27 are fitted. These pins will contact with the exterior surface of the The sharp plates 20 and prevent their displacement on the key.

The width of the cam surfaces 24 is such upper surface of the bolster, is pivotallyj mounted in the-plates 8, and, normally, when I the bumper is in theoperative position the I clevis rests on theupper surface of the bol- I ster. A groove 29 is provided in the upper@ the sides of the bolster; a key connecting Surface of the bolster, near the end of same.

. The reason for this will appear hereinafter.

The operation of 'my bumper is as follows: WVhen the first rowof 'logs is placed on the upper surface of the bolster, the, pointed member 11 is placed as shown in? Fig. .1 and the'bumper is drawnor pushed against the log. The key'23 being main-j tained in position shown inFig. l allowsf the notches 22 of theplate 20 to jump con- 2 secutively until the member -11 engages the bolster. This will prevent .the rotation of the key in the bolster. It can beeasi'ly seen that when in position as shown in Fig. 1, I theprism of logs positioned on the bolster" willtend to .force the bumper oil the bolster, and, necessarily, the plate 20 will pull on When it is desired to discharge a load of logs from the bolster, the loop 12 is disengaged from the member 11 and the hook member 32 is disengaged from the key:

member 23. The key is turned slightly so as to raise the plates 20 and turn the key to the position indicated in Fig. 2. Under theaction of the load the bumper will roll on the upper surface'of the bolster; and as 2 the :plate 20 cannot drop into positionof Fig. 1 as the notches are not wide enough to engage the cam 2a of the key 23. The rolling motion of the bumper will cause the same -to roll ofi' the surface and take the position indicated in Fig. 2, with the clevis engaging the groove 29 provided on the upper surfaceof the bolster and causingthe rollers 17 to abut against the inclined end of the bolster 6. Inthis position the bumper will direct the rolling rlogs away from :the wagon.

Simultane- Having thus described my invention, what I claim as new and desire to secure by *Letters Patent is:

1. In combination with a wagon bolster, a bumper comprising collapsible means adapted to roll on top of the bolster; means connecting said bumper to said bolster and adapted to make said bumper stationary or movable or cause it to collapse from the top of the bolster.

2. In combination with a wagon bolster, a bumper comprising a member adapted to roll on top of the bolster; means engaging said side means to the bolster, said side means having means therein co-actiug with said key whereby said rollingmember when supporting the load may be caused by the same to rollon thebolster and roll off from the topof same against the end of the bolster.

3. In combination with a wagon bolster, a bumper comprising a member having means whereby it is adapted to roll on top of the bolster and pivotal means securedto log. The key 23 prevents reverse movement of the bumper when in position shown in. ,Fig. 1. The followingrows of logs can then 1 beplaced. To prevent the rotation of the key 23 in the bolster the head 30 .ofthe key is provided .withan opening .31, which opening is engaged by a hook 32 secured to the 1 said member and adapted to engage the sides of the bolster; and a key engaging said-side means and the bolster, said key and said side means having means whereby the said member can be made stationary or movable on the bolster, said member being adapted when rolling on the bolster to roll oii the top of same and rest against the end of the bolster.

4:. In combination with a wagon bolster, a bumper comprising two plates; means connecting said plates together; rollers intermediatesaid plates resting on the top of the bolster; a sharply pointed-member pivotally mounted between the plates; longitlidinal plates pivotally connected to said plates and bearing against the sides of the bolster; and a key having cam portions connecting said longitudinal plates to the bolster, said longitudinal plates having means adapted coco-act with said cam portions onsaid key, whereby said bumper is made stationary or movable on the bolster.

5. In combination with a wagon bolster, a bumper comprising a structure resting on top of the bolster formed by two plates;

means for connecting said plates together; the key 23 1s'1n position as indicated in Fig.

rollers intermediate said plates adapted to roll ontop of the bolster and a clevis pivotally engaging said plates and resting on top of the bolster; longitudinal plates contacting with the sides of the bolster in pivotal connection with said structure; and a 'key'connecting said plates to said bolster,

said longitudinal plates and key having means whereby said structure and longitudinal plates can be "made stationary or movable on the bolster, the bolster having a groove near the end-thereof adapted to engage said Clovis when said structure rolls off the top of the bolster, said engagement of said clevis with said groove causing the said rollers of the structure to contact with the end of the bolster, thereby maintaining said structure in a predetermined position.

6. In combination with a wagon bolster, a bumper comprising two facing plates each having a plurality of cups; ball hearings in said cups; rollers intermediate said facing plates in engagement with said cups and bearing in said ball bearings; means binding said facing plates together, said rollers carrying said facing plates on the bolster; and means connecting said bolster to said bumper and whereby the position of said 15 WILLIAM F. JONES.

Witnesses:

G. C. BENGE, B. G. ACKER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

